James Moritz wrote:

[...]
The discussion so far relates to a "full bridge" output stage, 2 totem
poles with the load connected between the two outputs.

Jim,
   thanks for the explanation. I hadn't realized you were talking of
a bridge configuration. I thought that a single totem pole were used,
and so I could not figure how it was possible to drive it with 0 degrees
phase.

73  Alberto  I2PHD